Engine tuning quick question.

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NVHLVNOP - 12 Nov 2003 00:58 GMT

Started up my heli today. Engine ran normal for few seconds, then increased
rpm suddenly for 1 sec, then dropped down for 1 sec, then went up again for
about 1/2 sec, then the engine quit suddenly. Is it too lean or too rich?

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-Jonathan-

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Mike - 12 Nov 2003 11:03 GMT

>Subject: Engine tuning quick question.
>From: "NVHLVNOP" gte239y@prism.gatech.edu
[quoted text clipped - 8 lines]
>
>-Jonathan-

sounds more like a bad plug or a split fuel line somewhere. Check the clunk
tube as well, sometimes they go jelly-like and start to shed bits of silicon
(straight into the carb).
Could even be the fuel, if it is old, or not shaken before fueling up.

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Lars Henrik Kjølberg - 13 Nov 2003 09:30 GMT

> sounds more like a bad plug or a split fuel line somewhere. Check the clunk
> tube as well, sometimes they go jelly-like and start to shed bits of silicon
> (straight into the carb).
> Could even be the fuel, if it is old, or not shaken before fueling up.

What?
Do you shake your fuel before fueling? Who are you, James Bond? :-)

Lars

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LILDex - 12 Apr 2009 23:36 GMT

I havent heard the shaking bit either... Where did you hear that?
Stev

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LILDe

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Model Forum / Radio Controlled / Helicopters / April 2009

Engine tuning quick question.